CrossDJ from MixVibes is one of the DJ applications that’s making a name for itself by trying to beat the Big Three (Serato, Traktor, VirtualDJ) at their own feature set – and their brand new update for CrossDJ for iPad attempts to show up Traktor with an advanced keylock algorithm. The new version (1.1) purports to have the best audio algorithms available powering the keylock system.

Here’s the full feature list from the MixVibes press release:

The app uses the best algorithms available on the market, so the sound is crystal-clear. The quality of the audio
output has never been so high on an iDevice. MixVibes proves it again with the new keylock function.

Keylock: mix everything with everything
No matter how much you change the tempo of your track, the tone will remain unchanged (without any distortion),
the music will stay harmonious. Keylock is useful when you mix different music genres. Indeed, 2 tracks from different genre have very different BPMs. This functionnality allows you to feel completely free and mix various music!
At the end of the day, you are more focused on your mix, and less on the technology.

What’s new in this version (1.1)

  • Keylock.
  • Faster library browsing.
  • Tapping on the vinyl when no song is loaded opens up the collection to load a song.
  • Master knob is linked to the iDevice volume buttons.
  • Optimized delay effect.
  • Cue / Play swipe.
  • New settings: Security, Pitch bend.
  • Various bug fixes and enhancements.

To promote the new release, CrossDJ has posted a video explaining the basics behind keylock and pitch bend and how it affects sound – a good overview for beginners:

CrossDJ users, we want to hear from you – how good do you find the new keylock engine? 



  • humantraffic

    I have a hard time believing some these claims… “no distortion”? doesn’t matter how good your algorithms are, there’s going to be artifacts and it’s going to sound like shit if you push it far enough

  • Tragik

    Yeah Right

  • Anonymous

    Is this them telling us they finally licensed Elastique Efficient from ZPlane? Just like everybody else in the audio world? http://www.zplane.de/index.php?page=description-elastique

  • Blurp

    Uhhhh… seriously? You can hear right there in the example that it still has artifacting. Bleh whatever. Seems like they’re trying to cash in on people’s ignorance by advertising a standard feature as *new and shiny!*

  • Alienor

    Way better than before but still light-years behind the best keylock renderings I’ve heard (this being said, even elastique falls short when confronted to non-realtime algorithms, which is natural but a bit frustrating given the processing power of modern hardware ^^)

  • Last Resort

    two words: snake oil

  • Delphine (MixVibes)

    As said in these previous comments, MixVibes uses the Zplane algorithm. We would like to thank them again for their great technology. Still. It is not just a matter of using the algorithm but how it is used combined with the audio system in the application.

    We suggest you to take whatever track you like : preferably a track with synths tone and a voice (where distortion and glitches can appear when you pitch up / down).

    Pitch down the same track on the same iPad with the different DJ applications using this algorithm, and just listen.

    MixVibes team

  • http://www.djtechtools.com/2013/03/28/video-comparing-key-lock-on-ios-dj-apps/ Video: Comparing Key Lock on iOS DJ Apps | DJ TechTools

    [...] The Wave If anything, this test really brings MixVibes’ claim last week that they’ve got the best keylocking audio engine on the marke… into perspective – especially when compared to Traktor DJ’s results! [...]

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